Galindo Francisco, Mª del Carmen and Baldo, Edgardo G. and Pankhurst, R.J. and Casquet, César and Rapela, Carlos W. and Saavedra, Julio (1996) Edad y origen de la fluorita del yacimiento de la Nueva (Cabalango, Córdoba, Argentina) en base a geoquímica de isótopos radiogénicos (Nd y Sr). Geogaceta, 19 . pp. 67-69. ISSN 0213-683X
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Official URL: http://www.sociedadgeologica.es/publicaciones_geogaceta.html
Abstract
The fluorite mineralization from the La Nueva Mine, has a Sm-Nd age of 130 ± 19 Ma, and thus must be related to the Lower Cretaceous late-Gondwanic extensional and magmatic event that affected the Sierras Pampeanas Basement of Argentina. Hydrothermal fluids involved in the formation of fluorite were probably derived by mixing of two fluids, an ascending high 87Sr/86Sr one, probably equilibrated with basement metamorphics, as suggested by the very negative ENd(130) values, and a second, "descending", with a low 87Sr/86Sr value.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Fluorite, Sm-Nd geochronology, Rb-Sr geochemistry, Sierras Pampeanas, Córdoba, Argentina |
| Subjects: | Sciences > Geology > Geochemistry |
| ID Code: | 11553 |
| Deposited On: | 16 Nov 2010 13:08 |
| Last Modified: | 16 Nov 2010 13:08 |
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